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  1. vondeliusc

    CriCri MC-15 in NZ

    My main concern would be if the wires migrated forward into the flywheel; that might be bad. Otherwise, some quality fresh locktite would probably be fine, along with some torque-stripe (marking) on each for a check during preflight. Many bolts on the helicopters had torque-stripe which is easy...
  2. vondeliusc

    CriCri MC-15 in NZ

    Shannon- Nice adaptation for the boxer engines. Looking at this, I would drill the rods at the aft end flush with the aft face of the mount for a safety pin; also I would drill the clamp bolt heads to accept safety wire to prevent vibrational loosening so the mount rod does not migrate fwds...
  3. vondeliusc

    Solidworks Student - Flattening curved sheet metal?

    Narfi (no name) SW sheet metal is expected to be used for linear folds. Basic criteria is that the component must be of constant thickness and straight line bends, and that bends are of a constant radius. So unless you get fancy, think box; think about a press brake with a straight die...
  4. vondeliusc

    CriCri MC-15 in NZ

    The video is exactly what I envisioned! Now I see why the header is to the inside..so the tuned pipe is against the fuselage..(brain fart) I looked at the Kiwi biker site and learned a lot about hydroforming. Seem like the key is edge prebend/butt weld. And pressure control, rather than all or...
  5. Full Penetration On 321 SS

    Full Penetration On 321 SS

    • vondeliusc
    • Media item
    • Comments: 0
    • Album: CriCri+BrilliantDesign
  6. Goodfabs Welding

    Goodfabs Welding

    • vondeliusc
    • Media item
    • Comments: 0
    • Album: CriCri+BrilliantDesign
  7. CriCri+BrilliantDesign

    CriCri+BrilliantDesign

    Various build pics
  8. vondeliusc

    CriCri MC-15 in NZ

    The last pic ball joint would be easy to do: a spherical male mandrel to the size you have, machined, using a hydraulic press to flare the pipe. I would have the mandrel on the top with a wedge sleeve on the tube below to keep the pipe from slipping as it is pressed. The ball would be 'easy' to...
  9. vondeliusc

    Crashes in the News - Thread

    OV-1 plane crash at air show in south Florida: Sadly not survivable: https://twitter.com/i/status/1190342159767080965
  10. vondeliusc

    Crashes in the News - Thread

    A lady in a car reported one engine (probably #4) was 'not spinning', and there was a huge racket from another engine (probably #3).
  11. vondeliusc

    CriCri MC-15 in NZ

    I have been ramping up my CNC and machining skills. My son is graduating from High School and is an Eagle Scout, so we are going to Oregon for 1 week next week where he lives. Day job and other (many projects) need to happen, so CriCri is pushed back for now, and I have SO little time currently...
  12. vondeliusc

    CriCri MC-15 in NZ

    Silently lurking, now. Love to hear you engineer out loud; it is getting my CriCri juices running :) Decided I like your all-alodined look. -Christian
  13. vondeliusc

    Photography

    Google Photos works for me. Just don't trust them; be sure your originals are backed up locally. https://photos.app.goo.gl/kvhbJEi8LLq9c794A -Christian
  14. vondeliusc

    CriCri MC-15 in NZ

    Shannon- I am learning Fusion360. So you went from 6 to 9 screws..It looks like you CNC'ed the new doublers with the plastic on? I was having issues when I milled with plastic on. The nutplate holes were all CNC'ed? They all lined up with the previous holes because of that? Are you supposed to...
  15. vondeliusc

    CriCri MC-15 in NZ

    Shannon- Starting to build again. Just got shop moved. CNC PlasmaCAM is now finished and open for business again: https://photos.app.goo.gl/FDDaKb4l3oAMv0Rm1 Now finishing up my 38 x 70 x 8" (1770x950x220mm) CNC router table and have been learning a 6040, also, in preparation for making parts...
  16. vondeliusc

    CriCri MC-15 in NZ

    Yahoo DIY turbines group. Don't bother trying to make a turbine for a Cri-Cri from an auto turbo; just not enough power. Check out Dawie Botes turbine CriCri from Australia and copy his. Would be nice to take an RC turbine and make a proper turbo-prop, though. Before...
  17. vondeliusc

    CriCri MC-15 in NZ

    Shannon- Nothing since October. I have been working on my CNC to fabricate CriCri parts sporadically. Please post an update for all your adoring fans :gig: -Christian
  18. vondeliusc

    Anybody have any idea where to get a CriCri kit?

    You can check out the differences between the evil Zenair/Zenith Cricket and the stock Colomban CriCri here: https://groups.yahoo.com/neo/groups/cricridrawings03/info -Christian
  19. vondeliusc

    CriCri MC-15 in NZ

    Quick response: survived the fires which were a bit away from us, but smoky. I stopped by Synergy a few weeks ago, and they are feverishly working on the aircraft. Originally, I worked with/for John at Synergy doing much of the initial modeling for prototypes. Unfortunately, I was informed I was...
  20. vondeliusc

    CriCri MC-15 in NZ

    Last I heard he had had a baby, and that will slow you down, trying to take care of a family. I have good hopes he is still around:). -Christian
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